Marta Lachowska

The Short-Term Effects of the Kalamazoo Promise Scholarship on Student Outcomes

In order to study whether college scholarships can be an effective tool in raising students’ performance in secondary school, we use one aspect of the Kalamazoo Promise that resembles a quasi-experiment. The surprise announcement of the scholarship created a large change in expected college tuition costs that varied across different groups of students based on past enrollment decisions. This variation is arguably exogenous to unobserved student characteristics. We estimate the effects of this change by a set of “difference-in-differences�? regressions where we compare the change in student outcomes in secondary school across time for different student “length of enrollment�? groups. We find positive effects of the Kalamazoo Promise on Promise-eligible students large enough to be deemed important - about a 9 percent increase in the probability of earning any credits and one less suspension day per year. We also find large increases in GPA among African American students.

The Effect of Public Pension Wealth on Saving and Expenditure

In order to study whether public pension systems displace private saving, we use the quasi-experimental variation in pension wealth created by Poland’s 1999 pension reform. Using the 1997-2003 Polish Household Budget Surveys, we begin by estimating “difference-in-differences�? regressions, where we compare household saving and expenditure across time and between cohorts affected and unaffected by the reform. Next, we estimate the extent of crowd-out by using two-stage least squares. We identify the effect of pension wealth on private saving by using the cohort-by-time variation in pension wealth that is explained by the reform. We find that one additional Polish zloty, or PLN, of pension wealth crowds out about 0.24 PLN in household saving. We also find heterogeneity in responses. For the middle-aged cohorts, we find a large public pension crowd-out of private saving (about 0.54 PLN of private saving for each 1 PLN of public pension wealth), while the crowd-out for younger cohorts equals about 0.30 PLN of private saving per 1 PLN. Finally, we find a close-to-complete crowd-out among highly-educated households.

Sources of Displaced Workers’ Long-Term Earnings Losses

We estimate the magnitudes of reduced earnings, work hours, and wage rates of workers displaced during the Great Recession using linked employer-employee panel data from Washington State. Displaced workers’ earnings losses occurred mainly because hourly wage rates dropped at the time of displacement and recovered sluggishly. Lost employer-specific premiums explain only 17 percent of these losses. Fully 70 percent of displaced workers moved to employers paying the same or higher wage premiums than the displacing employers, but these workers nevertheless suffered substantial wage rate losses. Loss of valuable specific worker-employer matches explain more than half of the wage losses.